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• W2122103654 startingPage "2464" @default.
• W2122103654 abstract "While global chromatin conformation studies are emerging, very little is known about the chromatin conformation of human telomeres. Most studies have focused on the role of telomeres as a tumor suppressor mechanism. Here we describe how telomere length regulates gene expression long before telomeres become short enough to produce a DNA damage response (senescence). We directly mapped the interactions adjacent to specific telomere ends using a Hi-C (chromosome capture followed by high-throughput sequencing) technique modified to enrich for specific genomic regions. We demonstrate that chromosome looping brings the telomere close to genes up to 10 Mb away from the telomere when telomeres are long and that the same loci become separated when telomeres are short. Furthermore, expression array analysis reveals that many loci, including noncoding RNAs, may be regulated by telomere length. We report three genes (ISG15 [interferon-stimulated gene 15 kd], DSP [Desmoplakin], and C1S [complement component 1s subcomplement]) located at three different subtelomeric ends (1p, 6p, and 12p) whose expressions are altered with telomere length. Additionally, we confirmed by in situ analysis (3D-FISH [three-dimensional fluorescence in situ hybridization]) that chromosomal looping occurs between the loci of those genes and their respective telomere ends. We term this process TPE-OLD for “telomere position effect over long distances.” Our results suggest a potential novel mechanism for how telomere shortening could contribute to aging and disease initiation/progression in human cells long before the induction of a critical DNA damage response." @default.
• W2122103654 created "2016-06-24" @default.
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• W2122103654 date "2014-11-15" @default.
• W2122103654 modified "2023-10-17" @default.
• W2122103654 title "Telomere position effect: regulation of gene expression with progressive telomere shortening over long distances" @default.
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• W2122103654 doi "https://doi.org/10.1101/gad.251041.114" @default.
• W2122103654 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4233240" @default.
• W2122103654 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25403178" @default.
• W2122103654 hasPublicationYear "2014" @default.
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